CO2 removal from a gas stream by membrane contactor

被引：59
|
作者：
Bottino, Aldo [2 ]
Capannelli, Gustavo [2 ]
Comite, Antonio [2 ]
Di Felice, Renzo [1 ]
Firpo, Raffaella [2 ]
机构：
[1] Univ Genoa, Dipartimento Ingn Chim & Proc G Bonino, I-16145 Genoa, Italy
[2] Univ Genoa, Dipartimento Chim & Chim Ind, I-16146 Genoa, Italy
来源：
SEPARATION AND PURIFICATION TECHNOLOGY | 2008年 / 59卷 / 01期
关键词：
carbon dioxide; membrane contactor; mathematical;
D O I：
10.1016/j.seppur.2007.05.030
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
Gas-liquid membrane contactors were applied to remove carbon dioxide from a gas stream by using an aqueous monoethanolamine (MEA) solution as absorbent. Various modules composed by different numbers of commercial polypropylene capillary membranes were constructed and tested in a laboratory-scale plant fed with a N-2-CO2 gas mixture. Attention was especially focused on the CO2 removal efficiency of the different membrane modules when gas flow rate was increased from 5 up to 360L/h. A mathematical model was developed to simulate the absorption process in order to predict gas removal efficiency from the knowledge of the system physical parameters. The overall membrane mass transfer coefficient km was determined and used to compare experimental and predicted removal efficiencies. A good agreement between the developed model and experimental results was found. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码：85 / 90
页数：6
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